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Commit Graph

208 Commits

Author SHA1 Message Date
Olivier Guyot
2f3e8d04f1 Webgl points / fix hit detection for retina devices 2019-07-11 00:05:55 +02:00
Olivier Guyot
28b99767f8 Webgl points / read only one pixel for feature hit detection 
Also implements `hasFeatureAtCoordinate`.

`hitTolerance` is not supported for now.
 2019-06-28 09:12:20 +02:00
Olivier Guyot
e852294938 Webgl / improve reading of render targets data 
Now two methods are available: `readAll` and `readPixel`,
and the data from the render target is not re-read every time unless
`clearCachedData` is called.
 2019-06-28 09:12:20 +02:00
Olivier Guyot
38920867fb Webgl Helper / Add a method to prepare drawing to render targets 2019-06-28 09:12:20 +02:00
Olivier Guyot
6224d749c4 WebGL / Introduced the WebGLRenderTarget class 
This utility class simplifies rendering to a texture & reading the
results of the render.

It also allows clearing its content before a new render.
 2019-06-28 09:12:20 +02:00
Olivier Guyot
f25a16d90c Webgl helper / rework create texture utils 
Now only one util is available: `createTexture`, which
is tested and allows binding an image and reusing an existing texture.
 2019-06-28 09:12:20 +02:00
Olivier Guyot
b6425187de Remove unused WebGLShader class 2019-06-28 09:06:16 +02:00
Frederic Junod
ef10834eb3 Remove unused constants from ol/webgl 
And change the `EXTENSIONS` constant to a function
 2019-06-20 10:25:22 +02:00
Olivier Guyot
9ae7256048 Merge pull request #9562 from jahow/webgl-worker 
Optimize the WebGL points renderer using a worker
 2019-06-06 08:48:29 +02:00
Olivier Guyot
2412fe0211 Webgl / remove handling of element_index_uint extension 
From now on we will assume this extension is always enabled.

An error message have been added in the unlikely scenario of a lack
of support.
 2019-06-05 14:46:15 +02:00
Frederic Junod
02ce2f4bec Use compose function from ol/transform 2019-06-04 13:23:12 +02:00
Frederic Junod
06be00bbd5 Webgl Helper / add an API for OESElementIndexUint extension 2019-06-01 15:35:27 +02:00
Olivier Guyot
a366803cdd Webgl / use the new buffer API in helper & the points renderer 2019-06-01 15:33:36 +02:00
Olivier Guyot
33d007ce01 Webgl buffer / now stores data in typed arrays 
The `WebGLBuffer` class API was changed in order to allow populating
the internal array in different ways.
 2019-06-01 15:33:31 +02:00
Tim Schaub
deb00f20fe Include full filename in import specifier 2019-05-29 08:51:10 -06:00
Olivier Guyot
5d2b7fe4bb Webgl points / use the helper ton compute the projection transform 
The `WebGLHelper` class now provides a `makeProjectionTransform` method
that updates a transform to match the projection for a given frame state.

This also means that the WebGLHelper does not set the projection matrix
uniform anymore, this is the responsibility of the renderer as
the rendered coordinates will not be in world space from now on.
 2019-05-15 10:18:47 +02:00
Olivier Guyot
3e2e45ce6d Webgl helper / add the possibility to use transforms as custom uniforms 
These will be translated into 4x4 matrices in GLSL.
 2019-05-15 10:18:47 +02:00
Olivier Guyot
f69c37566e Improve documentation on webgl and View 2019-05-04 17:26:05 +02:00
Tim Schaub
58c4c9ebb8 Remove unnecessary closure and fix uniform type 2019-04-19 14:33:43 -07:00
Olivier Guyot
c6a859d1ed Webgl / clarify premultiplied alpha handling 
By default, alpha premultiplying should be done by the initial rendering
(eg quads) and not the final post processing pass.

The default post processing pass expects premultiplied color values and
will not do this operation itself.
 2019-04-02 22:12:47 +02:00
Olivier Guyot
b955579a9c Webgl / clarified the buffer binding/flushing logic 
The Webgl points layer renderer has also been optimized accordingly,
giving out much better performance.
 2019-04-02 21:05:31 +02:00
Tim Schaub
511e580c76 Merge pull request #9090 from jahow/add-webgl-points-example 
Add texture & color to the WebGL points renderer
 2018-12-29 22:12:12 -07:00
Olivier Guyot
33c717e159 Use a cleaner way to create a webgl context 2018-12-28 16:10:38 +01:00
Olivier Guyot
62c7a49943 Webgl points / added a texture option & improved doc 2018-12-28 15:53:07 +01:00
Olivier Guyot
0acfd7ab59 WebGL points / Added a color attribute 2018-12-28 15:53:07 +01:00
Olivier Guyot
27b0cf18e7 Update default shaders in documentation of webgl classes 2018-12-07 09:32:52 +01:00
Olivier Guyot
b532a489d4 Webgl points / fix weird glitches by premultiplying alpha 2018-12-07 09:02:02 +01:00
Olivier Guyot
f177a2bcd5 Simple handling of layer opacity in webgl points layer 
Now the layer opacity is simply handled by a CSS property on the layer DOM element. As such it does not have to be
taken into account in shaders.
 2018-12-07 09:02:02 +01:00
Olivier Guyot
2367fbb1ea Webgl / do not enable missing attributes 
Some expected attributes might not end up in the compiled shader. In this case, skip calling enableVertexAttrib
 2018-12-07 08:57:03 +01:00
jahow
55c36b5aab Shader compilation errors are now logged even when the compilation succeeded 2018-12-01 00:03:05 +01:00
jahow
6b82cf0b84 Simplified the API of WebGLHelper 
Now the shader and program caches are simply arrays of native WebGL created objects.
The WebGLHelper simply takes the sources of the frag and vert shader and produces a program.

This removes 2 classes & reduces the general verbosity of the API.

Also a `getShaderCompilationErrors` was added on `WebGLHelper` to help debug GLSL errors.
 2018-11-19 13:11:23 +01:00
Frederic Junod
42a8c7983f Fix webgl types in ol/webgl/PostProcessingPass 2018-11-17 11:20:11 +01:00
Olivier Guyot
66a74ac019 Renamed WebGLBuffer to WebGLArrayBuffer to avoid conflicts 
In the future this should be reworked to have a clearer API in general.
 2018-11-16 14:02:10 +01:00
Olivier Guyot
a84559d1fb Added documentation & fixed linting for WebGL classes 2018-11-16 14:02:10 +01:00
Olivier Guyot
cb77e10179 Removed the legacy shader build system 2018-11-16 14:02:10 +01:00
Olivier Guyot
530bcd0c88 Improve handling of uniforms in webgl helper 2018-11-16 14:02:10 +01:00
Olivier Guyot
94524fb431 Webgl Helper now handles uniforms with framestate as input 2018-11-16 14:02:10 +01:00
Olivier Guyot
716256e8f3 Cleaned up the heatmap layer & use dynamic radius 2018-11-16 14:02:10 +01:00
Olivier Guyot
fb8bf785dd Use the gradient texture in the heatmap layer 2018-11-16 14:02:10 +01:00
Olivier Guyot
4a275c543a Use post-processes in the heatmap example 2018-11-16 14:02:10 +01:00
Olivier Guyot
0c1424c5bb Added the concept of post process passes for webgl 2018-11-16 14:02:10 +01:00
Olivier Guyot
7fa2189fe9 Remove the bulk of the WebGL legacy code. 
Things left to do:
* redo an icon layer example
* redo a clipping layer example
* update docs where WebGL renderers are mentioned
 2018-11-16 14:02:08 +01:00
Olivier Guyot
d3294730f1 Renamed WebGLContext to Helper for clarity 2018-11-16 14:01:21 +01:00
Olivier Guyot
51becf1c2e Allow custom post processing & improve blending 2018-11-16 14:01:21 +01:00
Olivier Guyot
298af9ca0f added the concept of frame buffer in webgl context 2018-11-16 14:01:21 +01:00
Olivier Guyot
3c5eac13c9 Handle alpha & custom shaders in renderer 2018-11-16 14:01:21 +01:00
Olivier Guyot
583dfb8e9d Actually make the renderer work 2018-11-16 14:01:20 +01:00
Olivier Guyot
1c11dc5311 Improved shader compilation & fixed PointsLayer ones 2018-11-16 14:01:20 +01:00
Olivier Guyot
97b16be572 Added attribute handling 2018-11-16 14:01:20 +01:00
Olivier Guyot
fc20dc986c Better handle uniform locations in shaders 2018-11-16 14:01:20 +01:00